Well-drill wrench



w; H. ELLINGER.

WELL DRILL WRENCH.

APPLICATION FILED 8.147, 1921.

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WELL DRILLLWRENCH.

APPLICATION FILED FEB. I4 1921.

1,396,099. Patented Nov. 8, 1921.

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gin 119144 014 WEE dinghy.

UNITED STATES PATENT OFFICE.

WELL-DRILL WRENCH.

' Application filed February 14, 1921.

I To all whom it may concern:

Be it known that 1, WILLIAM H. ELLIN- GER, a citizen of the United States, residing at Wichita Falls, in the county of Wichita, State of Texas, have'invented certain new and useful Improvements in Well-Drill WVrenches; and I do hereby declare the following to be a full, clear, and exact description of the invention such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to new and useful improvements in wrenches and particularly to wrenches used inconnection with well' drills.

One object of the invention is to provide a wrench of this character which is simple in construction, and which has novel anti-friction bearings whereby'the drill chuck rotating portion may be easily turned.

Another object is to provide a wrenchof this character which can be easily and quickly opened or closed to insert or remove the drill chuck, and which, when properly engaged with the chuck, will firmly hold the chuck while the same is being rotated.

A further object is to provide a ball bearing wrench of this character which can be opened to engage with which has means for preventing the escape of: the balls when so opened, said means being readily adjusted to permit the series of balls to run freely around the head of the wrench, when the wrench'is' closed and engaged with a chuck.

Other objects and'advantages will be apparent fromrthe following description when taken in connection with the accompanying drawings.

In the drawings:

Figure 1 is a top plan view of the wrench,

in closed position.

Fig. 2 is a top plan view of the wrench in open position.

Fig. '3 is a-front elevation of the wrench, showing the same in open position.

Fig. 1 is a vertical transverse sectional p iew taken on the staggered line of Fig. 5 is an enlarged vertical sectional detail view through the device, on the line 5-5 of Fig.1, which line passes in a plane at right angles to the axis of the roller bearings.

Fig. 6 is a horizontal transverse sectional view on the line 66 of Fig. 5. I

' Specification of Letters Patent.

a drill chuck, and

r Patented Nov. 8, 1921. Serial No. 444,773.

Fig. 7 is a horizontal sectional view on the line 7-7 of Fig. 5.

Referring particularly to the accompanying drawings, 10 represents a yoke having a handle shank 11 extending from the center of the outer portion thereof, in the same plane as the yoke. One arm of the yoke, designated as 10', is pivotally con nected to the shank, at the point of juncture of the integral arm. The outer end of each arm of the yoke carries an inwardly extending horizontal pivot pin 12 to which is secured'a segment of a ring 13. The ring 13 is'arra-nged to swing, as a unit, on the pins 12, as horizontal pivots, and each section of the ring is arranged to swing horizontally on the inner ends of pivots. The inner ends of the ring sections are pivotally or 'hingedly connected together as shown at 14. The pins 12 are also mounted on vertical pivots 15, carried by the arms of the yoke. Thus the ring is capable of swinging movement from a horizontal to a vertical plane, while the segments are capable of horizontal pivotal movement into open and closed position, in the same plane as the yoke, or in a vertical plane. I

The upper face of the ring 13 is formed with a ball receiving groove 16, in which are disposed the series of balls 17 Disposed above the ring 13 is a second horizontally arranged ring 18, in the lower face of which is formed a similar groove 19, receiving the upper portions of the balls 17. This ring 18 is also formed in two sections hinged together at 18. This ring, at the juncture of the sections, is formed with the interlocking joint 20, whereby the strain is taken from the pivot when the sections are swung into open position. The ring 13 is formed with the large'circular opening 13, while the center of the upper ring 18 is formed. with an elongated angular opening 21, this latter opening being arranged to engage its Walls with the wrench faces of the chuck, not shown.

The forward meeting ends of the ring sections of the ring 13 are formed respectively with the horizontal groove or bifurcation 22, and the tongue 23, received in said groove, when the sections are in closed position. 'In the tongue 23 is formed a long-L tudinally extending keyhole opening 24, the circular portion of which is disposed at the inner end of the tongue, while the narrow rearwardly, and

the pins 12, as vertical riphery of the head.

' to be nested within a recess 30, formed in but when the pin is rotated one wall of the groove 16, when the pin is rotated. The lower end of the pin is pro- 'vided with a radially extending handle 31, by means of whichthe pin is arranged to be rotated. When the pin is rotated in one direction, the web 29will stand transversely of the groove'and in advance of the ad jacent ball 17', to prevent said ball from running from-the end of the groove, when the sections of the ring are swung open to admit the drill chuck. WVhen the pin is rotated to disposethe web in the recess 30, said web will stand flush with the wall of the groove and thus permit the balls. to run freely around .in the groove.

' The shank of the other pin 26 is elongated and an ular in cross section, as shown at 26, sai portion being, in width, the same dimension as the width of the longer portion of the keyhole slot, but with its len th or major dimension, greater than the width of said slot, whereby when said angular portion is moved through the longer portion of the'slot, and rotated'in the circular portion, to stand crosswise of the end of the slot, said pin will be prevented from passage into the slot, with the result that the meeting ends of the sections of the ring 13 will be securely locked together. The inner or upper end of the pin 26 is also formed with a head 28 on the upper face of which, and adjacent the eri heral ed e of which there is formed a vertical web 32, similar to the web 29. This web 32 is also adapted to be seated within the recess 38,formed in the wall of the groove of the other section of the ring 13, to permit the free movement of the balls in the groove,

in said recess 33, the angular portion of the pin stands crosswise of the tongue, and inner end of the narrow longer portion of the keyhole slot, thereby permitting the balls to play and at the same time locking the ring sections together. Thus there is provided a pair of rings, between which are arranged bearing balls, which may roll freely therebetween, when the sections of therings are in closed position, and wherein all danger or annoyance of loss of the balls,when the sections are swung open to permit engagement with a drill chuck, is obviated. It will be particularly noted-that the pin 26 serves The shank of the pin 25.

with the web 32v handles 34:, each of which is formed with ashoulder 35 engaging under the lower ring 13, at the edge of'thecentralopening of said ring. These handlesidtare arranged to be rasped by the operator torotate the upper ring 18, to turn the nut of the drill chuck, V

as will be readily'understood. The shoulders 35, of the handles, support the lower ring against any tendency to drop out of position, and in view of the fact that the portions of the handles which are secured in the up er ring are bifurcated and the furcations thereof somewhat separated, the rings cannot'have any movement relative to each other except rotary movement.

An eye 36 is carried by the upper face of the inner portion of the handle shank 11, for attachment of the suspending chain, not shown, but used with this type of wrench, for facilitating the swinging of the wrench into and out of engagement with the drill chuck.

What is claimed is:

, 1. A well-drill wrench comprising a yoke support having one of its arms movably mounted, a ring comprising a pair of pivotally connected sections mounted for pivotal movement on the arms of the yoke, a ring comprising a pair of pivotally connected sections disposed said second ring being formed in two hinged sections, anti-friction means between the rings,'and means on thesecond ring engaging with the first ring to hold the rings in contact'with the anti-friction means.

' 2. A well drill wrench comprising a yoke having one of its arms pivotallymounted and both arms carrying pivot members on the ends thereof, a ring consisting of a pair of sections pivotally connected together at a point adjacent the connection of the pivotal arm of the yoke and each section pivotally connected to an arm of the yoke, said ring having a circular'groove in its upper face, a ring disposed above the first ring and grooved init's lower face, antifriction balls disposed in" the said grooves, the sections of both 'of said rings being capable of being swung open at one point for the reception of the chuck of a dril 3. 'A well drill wrench comprising a yoke, grooved rings pivotally supported in the yoke and being formed in sections pivotally connected together, bearing balls in the grooves of the rings and therebetween, one of the rings being rotatable with respect to the other ring, handles carried by the rotatable ring engaging with the other ring to maintain the rings in relative position with respect to each other, and means carried by the said other ring for holding the bearing balls from movement when the ring sections are pivotally moved.

4. A well drill wrench comprising a yoke, a pair of grooved sectional rings mounted in the yoke in superimposed relation to each other, one of the rings being rotatable with respect'to the other, rotatable means consisting of a series of bearing balls between the rings the sections being capable of being swung pivotally into open and closed position, the closure ends of the sections of one ring being respectively tongued and grooved, the tongue having a keyhole slot therein,

rotatable ball retaining means carried by said ring section ends, one of the retaining means having an ngular shank movable into the longer portion of the slot and rotatable transversely of the circular portion of the slot to maintain the ring sections in closed position, the ball retaining portions of said retaining means being movable into position to permit the free movement of the series of balls when the sections are locked in closed position.

In testimony whereof, I affix my signature in the presence of two witnesses.

WILLIAM H. ELLIN GER.

Witnesses:

B. D. LARTIN, JAMES H. COLEMAN. 

